package com.joking.netty.time;

import com.joking.netty.TimeServerHandler;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;

public class TimeClient {
    public static void main(String[] args) {
        String host = args[0];
        int port = Integer.parseInt(host);
        EventLoopGroup workerGroup = new NioEventLoopGroup();

        try{
            Bootstrap b = new Bootstrap(); // (1)
            b.group(workerGroup);   // (2)
            b.channel(NioSocketChannel.class); // (3)
            b.option(ChannelOption.SO_KEEPALIVE, true); //(4)
            b.handler(new ChannelInitializer<SocketChannel>(){

                @Override
                protected void initChannel(SocketChannel ch) throws Exception {
                    ch.pipeline().addLast(new TimeServerHandler());
                }
            });

            // Start the client.
            ChannelFuture f = b.connect(host, port).sync();  // (5)

            // Wait until the connection is closed.
            f.channel().closeFuture().sync();
        } catch (InterruptedException e) {
            e.printStackTrace();
        } finally {
            workerGroup.shutdownGracefully();
        }
    }
}
